296 results match your criteria: "Institute of Science Tokyo[Affiliation]"

Schizophrenia-related Xpo7 haploinsufficiency leads to behavioral and nuclear transport pathologies.

EMBO Rep

January 2025

Department of Psychiatry and Behavioral Sciences, Institute of Science Tokyo, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.

Recent genetic studies by the Schizophrenia Exome Sequencing Meta-Analysis (SCHEMA) consortium have identified that protein-truncating variants of exportin 7 (XPO7) can increase the risk of schizophrenia (odds ratio, 28.1). Here we show that mice with Xpo7 haploinsufficiency (Xpo7 mice) present with cognitive and social behavioral impairments.

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Mitochondrial YME1L1 governs unoccupied protein translocase channels.

Nat Cell Biol

January 2025

Biochemistry Section, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.

Mitochondrial protein import through the outer and inner membranes is key to mitochondrial biogenesis. Recent studies have explored how cells respond when import is impaired by a variety of different insults. Here, we developed a mammalian import blocking system using dihydrofolate reductase fused to the N terminus of the inner membrane protein MIC60.

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While renal replacement therapy (RRT) allows for precise fluid management as well as addressing electrolyte imbalances and the removal of other necessary compounds, its early initiation has not shown benefit in the general critically ill population. Moreover, the effects of early RRT initiation specifically in patients on venoarterial extracorporeal membrane oxygenation (VA-ECMO) also remain unclear. This retrospective study investigated adult patients who underwent VA-ECMO between April 2018 and March 2022 and used the clone-censor-weight method to emulate a hypothetical target trial and compare two groups: patients who initiated RRT within 2 days of VA-ECMO initiation (Early) and those who did not (Late).

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Tripodal Triptycenes as a Versatile Building Block for Highly Ordered Molecular Films and Self-Assembled Monolayers.

Acc Chem Res

January 2025

Laboratory for Chemistry and Life Science (CLS), Institute of Integrated Research, Institute of Science Tokyo, 4259 Nagatsuta, Midori-ku, Yokohama 226-8501, Japan.

ConspectusThe design of properties and functions of molecular assemblies requires not only a proper choice of building blocks but also control over their packing arrangements. A highly versatile unit in this context is a particular type of triptycene with substituents at the 1,8,13-positions, called tripodal triptycene, which offers predictable molecular packing and multiple functionalization sites, both at the opposite 4,5,16- or 10 (bridgehead)-positions. These triptycene building blocks are capable of two-dimensional (2D) nested hexagonal packing, leading to the formation of 2D sheets, which undergo one-dimensional (1D) stacking into well-defined "2D+1D" structures.

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The three-vessel view (3VV) is a standardized transverse scanning plane used in fetal cardiac ultrasound screening to measure the absolute and relative diameters of the pulmonary artery (PA), ascending aorta (Ao), and superior vena cava, as required. The PA/Ao ratio is used to support the diagnosis of congenital heart disease (CHD). However, vascular diameters are measured manually by examiners, which causes intra- and interobserver variability in clinical practice.

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Antimicrobial resistance is a major global concern and economic threat, necessitating a reliable monitoring approach to understand its frequency and spread via the environment. Hospital wastewater serves as a critical reservoir for antimicrobial-resistant organisms; however, its role in resistance gene distribution and dissemination remains poorly understood. This study integrates metagenomic and metatranscriptomic analyses, elucidating the dynamics of antimicrobial resistance in hospital wastewater.

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Recycling of Uridylated mRNAs in Starfish Embryos.

Biomolecules

December 2024

Department of Biological Sciences, Ochanomizu University, Bunkyo-ku, Tokyo 112-8610, Japan.

In eukaryotes, mRNAs with long poly(A) tails are translationally active, but deadenylation and uridylation of these tails generally cause mRNA degradation. However, the fate of uridylated mRNAs that are not degraded quickly remains obscure. Here, using tail-seq and microinjection of the 3' region of mRNA, we report that some mRNAs in starfish are re-polyadenylated to be translationally active after deadenylation and uridylation.

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Saliva in Balancing Oral and Systemic Health, Oral Cancer, and Beyond: A Narrative Review.

Cancers (Basel)

December 2024

Department of Oral Oncology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan.

Saliva plays a multifaceted role in oral health and systemic well-being. It supports digestion, protects oral tissues, maintains a healthy oral microbiome, and facilitates wound healing. Additionally, saliva serves as a diagnostic tool that reflects systemic health and disease/therapeutic states.

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Association of Systemic Inflammation with Dietary Intake, Nutrition Impact Symptoms, and Eating-Related Distress Among Patients with Advanced Cancer.

Healthcare (Basel)

December 2024

Department of Palliative and Supportive Medicine, Graduate School of Medicine, Aichi Medical University, 1-1 Yazakokarimata, Nagakute 480-1195, Japan.

Background: Serum C-reactive protein (CRP) levels are correlated with patient outcomes in cancer. This study aimed to determine associations between the CRP level and the dietary intake, symptoms, and eating-related distress (ERD).

Methods: We conducted a multicenter survey among advanced cancer patients.

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In toto biological framework: Modeling interconnectedness during human development.

Dev Cell

January 2025

Premium Research Institute for Human Metaverse Medicine (WPI-PRIMe), Graduate School of Medicine, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita-shi, Osaka 565-0871, Japan; Human Biology Research Unit, Institute of Integrated Research, Institute of Science Tokyo, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan; Divisions of Gastroenterology, Hepatology & Nutrition, and Developmental Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA; Department of Pediatrics, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA; Center for Stem Cell and Organoid Medicine (CuSTOM), Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA. Electronic address:

Recent advancements in pluripotent stem cell and synthetic tissue technology have brought significant breakthroughs in studying early embryonic development, particularly within the first trimester of development in humans. However, during fetal stage development, investigating further biological events represents a major challenge, partly due to the evolving complexity and continued interaction across multiple organ systems. To bridge this gap, we propose an "in toto" biological framework that leverages a triad of technologies: synthetic tissues, intravital microscopy, and computer vision to capture in vivo cellular morphodynamics, conceptualized as single-cell choreography.

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Fine-tuning probes for fluorescence polarization binding assays of bivalent ligands against polo-like kinase 1 using full-length protein.

Bioorg Med Chem

December 2024

Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 1050 Boyles St., Frederick, MD 21702, USA.

Polo-like kinase 1 (Plk1) is an important cell cycle regulator that is a recognized target for development of anti-cancer therapeutics. Plk1 is composed of a catalytic kinase domain (KD), a flexible interdomain linker and a polo-box domain (PBD). Intramolecular protein-protein interactions (PPIs) between the PBD and KD result in "auto-inhibition" that is an essential component of proper Plk1 function.

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Background: Therapeutic advancements for the polyglutamine diseases, particularly spinocerebellar degeneration, are eagerly awaited. We evaluated the safety, tolerability, and therapeutic effects of L-arginine, which inhibits the conformational change and aggregation of polyglutamine proteins, in patients with spinocerebellar ataxia type 6 (SCA6).

Methods: A multicenter, randomized, double-blind, placebo-controlled phase 2 trial (clinical trial ID: AJA030-002, registration number: jRCT2031200135) was performed on 40 genetically confirmed SCA6 patients enrolled between September 1, 2020, and September 30, 2021.

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Background: Microsatellite instability-high (MSI-high) tumors comprise ~15% of sporadic colorectal cancers (CRC) and are associated with elevated T cell infiltration. However, the universality of this response across T cell subtypes with distinct functions is unknown.

Methods: Including 1,236 CRC tumors from three observational studies, we conducted T cell profiling using a customized 9-plex (CD3, CD4, CD8, CD45RA, CD45RO, FOXP3, KRT, MKI67, and DAPI) multispectral immunofluorescence assay.

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Construction of the Gene Tagging and Knock Out (GTKO) System for Reliable Genetic Analysis of Nuclear Genes in Cyanidioschyzon merolae.

Plant Cell Physiol

January 2025

Laboratory for Chemistry and Life Science, Institute of Innovative Research, Institute of Science Tokyo, Yokohama, Japan.

The unicellular red alga Cyanidioschyzon merolae is a eukaryotic photosynthetic model organism used for basic and applied cell biology studies. Its nuclear genome can be modified by homologous recombination with exogenously introduced DNA. The comparison of mutants with isogenic strains is critical for reliable genetic analyses; however, this has been impossible thus far.

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The treatment of antibiotic wastewater often faces the challenge of simultaneously and effectively degrading multiple components under complex conditions. To address this challenge, magnetite nanoparticles doped ultrafine activated charcoal powder (MNPs/UACP), which effectively catalyzed the decomposition of HO into •OH and HO•, was prepared using chemical co-precipitation. Under optimum conditions (i.

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Revival of the heat shock response after two decades with a small Hsp in a critical but distinct act.

Biol Chem

January 2025

Cell Biology Center, Institute of Integrated Research, Institute of Science Tokyo (Formerly Tokyo Institute of Technology), S2-19, Nagatsuta 4259, Midori-ku, Yokohama, 226-8501, Japan.

The heat stress response is an essential defense mechanism in all organisms. Heat shock proteins (Hsps) are produced in response to thermal stress, with their expression levels regulated by heat shock transcription factors. In the key transcription factor σ positively regulates Hsp expression.

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Background: This study examined the relationship between the disciplinary diversity of research teams and research output (RO) in allergy and immunology programs funded by the National Institutes of Health (NIH) in the United States, Medical Research Council (MRC) in the United Kingdom, and Japan Society for the Promotion of Science (JSPS).

Methods: Using a dataset containing 1243, 3645, and 1468 articles funded by the NIH, MRC, and JSPS, respectively, we analyzed the correlation between disciplinary diversity and RO in allergy and immunology programs that received grants from 2017 to 2021. Diversity was measured using All Science Journal Classification codes counts, Shannon-Wiener index, and newly developed Omnidisciplinary index (o-index).

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A Water-Soluble Small Molecule Boron Carrier Targeting Biotin Receptors for Neutron Capture Therapy.

ACS Omega

December 2024

School of Life Science and Technology, Institute of Science Tokyo, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan.

A critical challenge in boron neutron capture therapy (BNCT) is expanding its effectiveness through the development of novel boron agents with different mechanisms of action than the approved drug 4-borono-l-phenylalanine (BPA). In this study, we developed a small molecule boron carrier, biotinyl--dodecaborate conjugate with an iodophenyl moiety (BBC-IP), incorporating biotin as a ligand for biotin receptors overexpressed in various cancer cells, alongside an albumin ligand and boron source. BBC-IP exhibited high water solubility, minimal cytotoxicity, and superior cellular uptake compared to BPA in both human and mouse cancer cells.

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Photocatalytic → isomerization of -bromofluoroalkenes: stereoselective synthesis of β-fluorostyrene derivatives.

Org Biomol Chem

January 2025

Department of Applied Chemistry, Faculty of Fundamental Engineering, Nippon Institute of Technology, 4-1 Gakuendai, Miyashiro-machi, Minamisaitama-gun, Saitama 345-8501, Japan.

Stereoselective synthesis of β-fluorostyrene derivatives has been achieved. Selective isomerization of -bromofluoroalkenyl benzenes bearing various -substituents is enabled by using Ir photocatalysts with high triplet energy. Subsequent one-pot transition-metal (TM)-catalyzed reactions enable pot-economical synthesis of monofluoroalkenes in a stereoselective manner.

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Article Synopsis
  • This study examines factors influencing the failure of left superior pulmonary vein (LSPV) isolation during cryoballoon (CB) procedure, even when complete occlusion is achieved.
  • Researchers analyzed 300 patients undergoing ablation, identifying two groups based on their LSPV isolation results: those needing additional freezing (Group A) and those only needing complete occlusion (Group B).
  • Key findings show that Group A had larger LSPV diameters, higher left atrial volumes, and different freezing conditions, suggesting the importance of balloon positioning for effective isolation in challenging cases.
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Potential needs of outreach dental care for patients with mental conditions.

Psychogeriatrics

January 2025

Department of Psychosomatic Dentistry, Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, Tokyo, Japan.

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Background: Aspiration pneumonia, which often recurs due to dysphagia, worsens as patients move between homes, facilities, and hospitals. The impact of pre-hospital living setting on oral intake at discharge remains unclear. The purpose of this study was to identify the effects of the pre-hospital living setting on the nutritional intake route upon discharge in older patients with aspiration pneumonia.

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Objective: To analyze the recent status of laparoscopic adrenalectomy for benign adrenal tumors, focusing on the relationship between the number of surgeries and complication rates per facility.

Methods: Data were obtained from the Diagnosis Procedure Combination database, covering surgeries performed between April 2012 and March 2020. The inclusion criteria were laparoscopic adrenalectomy for benign adrenal tumors.

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Background: C-reactive protein (CRP) is a prognostic biomarker for clear cell renal cell carcinoma (ccRCC). However, there may be potential racial heterogeneity in distribution and prognostic impact of CRP level. We investigated potential racial differences in distribution and prognostic impact of preoperative CRP among Asian (AS), African American (AA), and Caucasian (CAUC) patients with non-metastatic ccRCC (nmccRCC).

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Toward a Standardized Educational Framework in Burning Mouth Syndrome: Implications for Clinical Practice.

J Stomatol Oral Maxillofac Surg

January 2025

Department of Psychosomatic Dentistry, Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, Tokyo, Japan, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan. Electronic address:

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